Need more info. What kind of music, any sets you saw that you liked so far, brand loyalties, etc.
Ludwig Centennials have a very fat, rock sound and are reasonably priced at around $1600 for what you want. Mapex Saturns can be found on eBay for around $1400 for what you want, as well as Mapex Orions. Tama Superstars sell for about $1200 in a 6 piece config, but they're not your standard sizes/wood combo, so you'd have to try them out first. Peal Masterworks sells a 6 piece combo on Musician's Friend for around $1600.
In that price range, there's alot of options. Honestly, you can easily get a professional quality set in this range. Just don't expect natural to green fade transparent lacquer over olive ash burl veneer that you might get from DW.